ernest m



CONTROL MECHANISM FOR LAMPS.

APPLICATION FILED OCT. 20, 1921.

1,428,97 PatentedSap b.12,1922.

2 SHEETS-SHEET l.

' INVENTOR,

ATTORNEY.

PatentedSept. 12,1922.

2 SHEETS-SHEET 2.

ML QNABLE' CONTROL MECHANISM FOR LAMFS.-

MAME:

APPLICATION FILED 0CT.'20 192!- 1,428,974..

R! Q O m 0 w m v w W Mmk wm m .2 mm u mm N\ w Sm R. 1 NW m Qn mm 1 v NMMN .H NN 1! m Q Q m 3 "BY I ATTOR iY.

Patented Sept. 12, 1922.

tUNlTED $.TATE5 1a. OLSON, or cHI'oAe-o, 1LLINOIS.

'oonrnonnacnanrsm FORLhMPS. 11 i1 Application To'allwhom it may concern:

'Be' itjknown that I, EnNnsr-M. OLsoN, a

h citizen"ofthe United Statesyresiding at Chicago, in the county of Cookand State 5 of Illinois, have invented a new and useful Improvement in IControl= Mechanism for Lamps, of which the'following is a specifiv I 1tation-of thewsleeve 231,:and';pinion-2; will cation;-'-i--- I M a Thisinventionr'elates to improvements in cont-rolyme'chanismfor lamps, andisespe-' cially"adapted for usein connection with lamps,such-ashead-lights, mounted on automobiles, boats,'*aeroplanes, andother moving things. For the purposeof explaining the featurespfmyinventiom -I have' he're shown it as "applied to ahead-light mounted andthence backwardly throu h theiradiator 1 to a position within=reach othe ,{driver of:

at the front end of an "automobile. The feature's' and advantages 'ofthe invention will appeai-"from the following'specificati'on.

features of my invention,"shown in the accompanying drawings, Figure 1is a viewin side elevation of the front endof an automobile having'mounted thereon a lamp con- Mounted onithe radiator, in any suitable I'manner, such as by'the' bracket 11, is a'housing 12 whichissubstantially inthe shape of an inverted frustrated cone, somewhatflattened at the'backside 'where it lies adjacentthe front surface ofthe radiator. The upper end of the casing 12 carries a circu larturn-table 13' having diametrically-arranged upwardly projecting posts14: which carry pivotally supported between their upper ends the lamp orhead-light 16. Rotation of the turn-table is limited to substantially360 by means of the pin 19 adapted to engage with the stop 21.

Projecting upwardly through the center of the turn-table 13 is a sleeve23 carrying the pinion 2 1 at its upper end. Rotation of the turn-table13 with respect to the sleeve 23 is permitted. The lower end of thesleeve 23 projects into a stationary bridge member 25 which is held inposition within the casing 12 by means of the screws 27 at its end.Mounted on the sleeve 23 by means of the setscrew 28 is a bevel-gear 29lying between the In' that form of device embodying ther H wheel 11 bywhich the same mayi'be rotate 'thesleeve 39 will cause rotationoftheturm I .mi filed October-20, 1921. Serial No.'508,959.-

. turn-table a ranged between thezbevel-gear 29'iandjthe.

bridge member 25 is =acork washer 30. for :a,purpose'tobe.hereafterexplained. .-,j; The lamp 16 e'arries'on'its-.undersides a,

segment 32 provided with teeth .33 engaging with the teethion the pinion.24, so,that.ro-g

move thelampf lfiawhere it .isipivotejd between the supports 14, to makeit point; upwardlyna downwardlyror horizontally; as='i.desired.;'

The bridge member fla. hasia downwardly, I I

proj ecting part i3? providedwith;- a .hole ,38 T in-whichi is rotatablymounted} ;one;end1:Of-za tube 39 --which extends. through asnitablebearing 40 in-thebackside of. the casing, 12

the automobile. ,The inner-end Qfithe tuber-,7 5 39 1S -pr0v1ded.withfasuitable .qpperatin gear wheel e2'is sufiicientlythin--to.-permita certain amount of "longitudinal movement: of thesleeve 39. It is normally held in the rearmost position by means rofsthespiral; spring 415 .5 It is shown inthis -position in Figure 4. of thedrawings. "When -in' this position the teethof the pinion 44:mesh withthe teeth 50 of: the circular gear 51,-,mounted on the under surfaceofth'e turn-'tab le V 13.

By means of this construction, rotation of table 13 and consequentturning of theila mp 16 in a horizontal plane. Such turning of the lampin a horizontal plane will also operate to tilt the same for thefollowing reasons: The bevel-gear 29 is mounted on the sleeve 23sufiiciently low so that there will be some pressure of this bevel gearon the cork washer 30, thus yieldin ly holding the sleeve 23 againstrotation. Because of this construction, when the turn-table 13 rotates,the sleeve 23 will remain stationary. This will cause the segment 32 toroll around on the stationary pinion 2 1, thus tilting the lamp. Theparts are so arranged that when the tube 39 is rotated by means of thehand wheel or knob 41 to turn the lamp 16 to the right, this turningwill cause the lamp to Gil. i

be inclined downwardly. The value of this construction is obvious at aglance. When the vehicle is going straight ahead, the lamp is set topoint substantially horizontal. When approaching another vehicle, thecar turns to the right. When this is done, the wheel 41 is operatedtoturn the lamp to the right and this turning also serves to tilt thelampso that it will pointslightly downwardly, thus removing the glarefrom the driver of the approaching vehicle and also serving to betterilluminate the ground m the right and close to the front of the vehicle.After the vehicles have passed. when the straight road is-again taken,and the lamp turned to. the front again. it is automatically elevated-tothe requisite height for straight driving.

Tilting of the lamp 16 may also be accomplished, as desired,- withoutturning the same in a horizontal plane. This is done by pushing the tube39 forwarduntil the teeth of the bevel gear 43 engage with the teeth ofthe bevel-gear 29. This forward movement of the tube 39 serves todisengage theteeth ofthe gear 44 from the teeth ot' the gear 51. Whenthe bevel gears 43 and 29 are engaged, rotation of the operating wheel41 will serve to rotate-the sleeve and pinion 24 to raise or elevate thelamp 16, as desired. The spring 45 serves to slide the tube 39 backwardwhen the pressure is released, in order to again engage the teeth of thegear 44 with the teeth 50 ot' the circular gear 51.

Means are provided for turning the lamp off or on as follows: Mountedwithin the tube 39 and adaptedto slide therein is a rod carrying at itsinner end a knob 61. The rod 60 carries at its outer end a knife switch63 through which the circuit leadingto the lamp 16 is led. Pulling orinward movement of the rod 60 serves to close the switch and outwardmovement to open the same.

The casing 12 is supported at the bottom by a vertically arrangedtapered member suitably mounted in any manner at the forwardend of theautomobile. The wires 1. In a control mechanism fo ii ilainps means forsimultaneously rotating a lamp in a horizontal plane and inclining thesame.. downwardly,said meansicomprisinga eir- 65 cular turn-tablecarrying the. lamp means for rotating the turn-table, 'a stationaryzpinion, and a se mental toptl ied' rack: mountedwon the lamp enga'nggwithathe, stationarypinion... y .70

2. In a -control. mQQbfiinismafoelinps, a turn-table earrying a.lampppivotally supported thereon, a segmental toothed; racle mounted'onthe lamp. and engaging with a. pinion, means for rotating theturn-table, .75 and means for rotating the pinion engaging with thesegmental too h d i k. QR- the; lamp. i I

3. In a control. 'meehanism, ton. lamps, a turn-table carrying a; lamp-,pivotally,#30 mounted thereon, a -segmental tpothed grael on' the lampengaging ,witl1,-,a pinipn, andadjustahle operatingl-means-adapted to bemoved to a position togrotatetheturn-table. orto a position torotate-the pinion-engaging with the segmentalmtoothed! raeknon the lamp.r

4. In a control. mechanism gfor. a turn-table car1'ying .a-- lamp,-pigvotally mounted thereon, a segmental,toothedraclr mounted on the lampand engaging. with a pinion, yielding means for holding said pinionstationary, means for rotating. the turn 'table, and means for rotating.the.

pinion. I I p ERNESTM. @LSON.

